Advances in Earth Science ›› 2016, Vol. 31 ›› Issue (2): 115-125. doi: 10.11867/j.issn.1001-8166.2016.02.0115.

• Orginal Article •     Next Articles

On the Role of Perturbation Potential Energy in Variability of the East Asian Summer Monsoon: Current Status and Prospects

Jianping Li 1, 2( ), Sen Zhao 3, 4, Yanjie Li 3, Lei Wang 5, Cheng Sun 1, 2   

  1. 1.College of Global Change and Earth System Science (GCESS), Beijing Normal University, Beijing 100875,China
    2.Joint Center for Global Change Studies, Beijing 100875, China
    3.State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
    4.University of Chinese Academy of Sciences,Beijing 100049, China
    5. National Marine Environmental Forecasting Center, Beijing 100081,China
  • Received:2016-01-06 Revised:2016-02-08 Online:2016-02-20 Published:2016-02-10
  • About author:

    First author:Li Jianping(1969-), male, Shanyin County, Shanxi Province, Professor. Research areas include climate dynamics and predictability, monsoons, and annular modes and their

  • Supported by:
    Project supported by the National Natural Science Foundation of China “Role of perturbation potential energy in variability of the East Asian summer monsoon and the perturbation potential energy’s predictability”(No.41530424)

Jianping Li, Sen Zhao, Yanjie Li, Lei Wang, Cheng Sun. On the Role of Perturbation Potential Energy in Variability of the East Asian Summer Monsoon: Current Status and Prospects[J]. Advances in Earth Science, 2016, 31(2): 115-125.

The East Asian Summer Monsoon (EASM) exerts considerable influences on the climate in China. Studying kinetic energy sources of monsoon circulation from the perspective of energetics is critical important to understand monsoon variability and relevant mechanism. The traditional theory of Available Potential Energy (APE) and relevant studies were reviewed, and some limitations of the APE theory in studying regional effective energy cycle and transformation were discussed. A new theory of Perturbation Potential Energy (PPE) of atmospheric circulation, which can be applicable to the study of energy cycle and transformation of regional circulation systems,was introduced. The advantage of the PPE theory in studying regional effective energy cycle and conversion was discussed, and some advances in the role of the PPE in variability of the EASM were further reviewed. At the end, some important scientific open questions about the application of the PPE to investigations of EASM variability in future were summarized as follows: spatial-temporal characteristics and dominant modes of PPE at seasonal-interannual timescale over the EASM region, and their relationships with the EASM and lower boundary forcings; the physical processes and relevant mechanisms on how lower boundary forcings affecting the kinetic energy of EASM circulation through the key link of PPE; the preceding PPE signals associated with EASM variations, relevant underlying mechanisms, and predictability of the preceding PPE signals as well.

No related articles found!
Full text